Drag-saw.



No. 684,500. Patented Oct. I5', |90| G. s. Emma n. ADKms.

DRAG sAw'.

(Application iled July 6, 1901.)

(No Model.)

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dUNITED STATES PATENT muon,

GUSTAVUS S. ELGIN, OF PLATTE CITY, AND DAVID ADKINS, OF NEW- MARKET,MISSOURT.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 684,500, dated October15, 1901.

Application filed July 6, 1901.

To all whom, it 'nul/y concern:

Be it known that we, GUsTAvUs S. ELGIN, residing at Platte City, andDAVID ADKINs, residing at Newmarket, in the county of Platte and Stateof Missouri, citizens of the United States, have invented certain newand useful Improvements in Drag-Saws, of which the following is aspecification.

Our invention relates to improvement-s in drag-saws, and pertains tomeans by which the spring-actuating mechanism as described in LettersPatent No. 660,077, granted October 23, 1900, is adapted to actuate thesaw in one direction, thus enabling one operator to perform the workusually requiring two.

The object of our present invention consists of means for readilyattaching and detaching the saw from the machine and also to permit theoperator to set the saw to cut at different angles and when fellingtrees to permit the saw to cut on either side of the tree, all of whichwill be fully described hereinafter, and particularly pointed out in theclaim. l

In the accompanying drawings, Figure l is a perspective view of ourinvention. Fig. 2 is a detail view of the hooks or dogs for attachingthe machine to a log. Fig. 3 is alongitudinal sectional View of thespiral spring, showing the connecting loops or hooks.

Referring now to the drawings, the numeral 1 indicates a beam providedon its inner end with a longitudinal block 2, attached thereto by twobolts. 3 indicates two depending hooks pivoted between the beam 1 andthe block 2, their lower ends extending inward and adapted to be driveninto a log 4, the upwardly-extending curved arms 5 serving as a meansfor releasing the hooks, as will be presently explained. Connected tothe beam 1, near its outer end, is a rod or arm 6, the free end of whichis turned down and provided with a sharp point adapted to be driven intothe log. This rod serves as a further means of connecting the outer endof the beam with the log and braces the frame in a manner to preventlateral movement while the saw is being operated. On the outer end 'ofthe beam we provide a supporting-leg 7, 50 which is rigidly attachedthereto, the lower Serial No. 67,266. (No model.)

end resting on the ground and adapted to support the beam.

Intermediately pivoted to the outer end of the beam 1 and on the sideopposite the depending leg 7 is a lever 8, provided with a guide-plate9, each end of which is rigidly connected to the lever 8 at pointsintermediate the beam l and the free ends of the lever 8. The shoulderedplate 9, which passes over the end of the beam 1, serves to guide andsteady the lever 8, as will be readily understood.

The upper end of the lever 8 is connected by means of a chain, cable, orrope 10 with the free end of a coil or convolute spring 11, the saidspring having one end rigidly connected with the beam and its oppositeend, as before stated, connected with the upper end of theintermediately-pivoted lever 8. As a further means of steadying theframe and preventing the hooks from working loose, we provide a bail orshouldered plate 12, which is rigidly attached to the beam 1 and passesover the coil of the spring 11 to prevent the coils from overlapping orvibrating while the saw is being reciprocated.

The lower end of the lever 8 is connected with an ordinary drag-saw 13by a coil-spring 14. The connecting links or loops 15 are substantiallyU -shaped and the free ends turned to form hooks, which are adapted toengage and screw into the free ends of the coil-spring 14E, asillustrated in Fig. S.

Particular attention is called to the fact that by means of the links 15the saw can be turned to cut at different angles or turned over for thepurpose of filing or easily re'n leasing it from the spring forsharpening, Whereas in the usual manner of forming a hook of the freeends of the coil-spring the hook is necessarily made at right angles tothe coils, which not only holds the saw in one position, but constitutesa connecting-hook which is easily broken, necessitating a new spring.Each hook 15 engages the coil in two places, so that the strain isgreatly reduced, and shouldy the hook wear out or break it will onlybenecessary to replace the hook, thus obviating the necessity of getting anew spring.

IOO

In operating our machine the inner end of the beam :is connected withthe log by means of the hooks 3 and braced by the rod 6. The saw beingconnected with the spring 14, the operator draws the saw toward him andthe spring 11 serves to draw itin the opposite direction, while thespring 14 serves to give the saw a downward pull, which is the naturalmovement when operated by two men. The upwardly-extending arms of thelockingdogs 3 serve as a means for easily releasing the hooks after thelog has been sawed, the operator driving them inward7 as will be readilyunderstood.

Our saw is adapted for felling or cutting down trees, in which case thebeam is attached to the tree in the same manner, the saw being in ahorizontal position. In this connection it will be seen that theconnecting-links 15 will permit the operator to turn the saw, so as tocut the tree from both sides should the saw begin to bind and for thepurpose of felling the tree in the desired direclion, the usual methodbeing to first saw and then out or chop the opposite side with an ax.

A machine of the above construction enables one man to operate adrag-saw and perform the work which usually requires two.

Having thus described our invention, what we claim, and desire to secureby Letters Pat- 31o ent, is-

In a drag-saw comprising 'a beam, depending hooks for attaching the beamto the object to be sawcd, the upwardly-extending arms adapted torelease the said hooks, the

with a U-shaped portion adapted to engage the eyes in the saw and in thelower end of the lever 8 respectively and having outwardlyextendinghooks adapted to engage and screw into each end of the coil-spring 14,substantially as described.

In testimony whereof We affix our signatures in presence of twowitnesses.

GUSTAVUS S. LGIN. DAVID ADKINS.

Witnesses:

G. T. MILLER, C. L. CHINN.

